killed, sean smith n benghazi and a lot of questions were raised, again today at the homeland security committee on the hill, about why marines are not present in a place, a mission like benghazi and, in fact, marines were not present in tripoli and the response from the administration has been, we don't have marines at all of these postings. you as the former am bass tore to iraq and other places know well the kind of security we have. first i wanted to show you, matthew olson from the national counterterrorism center acknowledging to the committee today for the first time that they do believe there was an al qaeda involvement. this wasn't simply a spontaneous response to a film trailer. let's watch this. >> a number of different elements appear to have been involved in the attack, including individuals connected to militant groups that are prevalent in eastern libya, particularly in the benghazi area, as well, we are looking at indications that individuals involved in the attack may have had connections to al qaeda or al qaeda's affiliates, in particular al qaeda and islamic mugrab.